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2 years ago

Which expression converts 100 inches per minute to feet per minute ?

Mathematics

2 answers:

My name is Ann [436]2 years ago

8 0

To convert inches per minute to feet per minute, we can use dimensional analysis to help us cancel out the inches:

$\frac{100in}{1min}*\frac{1ft}{12in}$

Since we are going to cancel out units that are found on both the top and bottom of the fraction bars, we can cancel out units of inches, and thus we are left with feet per minute.

LenKa [72]2 years ago

3 0

Answer:

The expression is $\frac{100inches}{1minute}*\frac{0.08333feet}{1inches}$

Step-by-step explanation:

1 inch is equal to $\frac{1}{12}$ feet, so:

$\frac{1}{12}ft=0.08333 ft$

So, if we have 100 inches per minute, to convert it to feet per minute, we have to use the expression:

$\frac{100inches}{1minute}*\frac{0.08333feet}{1inch}$ = 8.333 $\frac{ft}{minute}$

You need to have attention to put the unit that you need that convert on the denominator to operate and obtain your result.

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Can someone plz answer B and C

Shkiper50 [21]

B.
When two lines intersect they form two pairs of opposite angles.
Vertical angles are always congruent, which means that they are equal.
so m<7 = m<8 or m<3y + 19 = m<5y-29

C. solve for y and measure <7 and <8

3y + 19 = 5y-29
5y - 3y = 19+29
2y = 48
y = 24

so
5y-29 = 5(24) - 29 = 91
3y + 19 = 3(24) + 19 = 91

so <7 = 180 - 91 = 89
<7 = <8 = 89

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seropon [69]

Answer:

Step-by-step explanation:

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1 year ago

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1 year ago

Crime and Punishment: In a study of pleas and prison sentences, it is found that 45% of the subjects studied were sent to prison

Gala2k [10]

Answer:

(a) The probability of getting someone who was not sent to prison is 0.55.

(b) If a study subject is randomly selected and it is then found that the subject entered a guilty plea, the probability that this person was not sent to prison is 0.63.

Step-by-step explanation:

We are given that in a study of pleas and prison sentences, it is found that 45% of the subjects studied were sent to prison. Among those sent to prison, 40% chose to plead guilty. Among those not sent to prison, 55% chose to plead guilty.

Let the probability that subjects studied were sent to prison = P(A) = 0.45

Let G = event that subject chose to plead guilty

So, the probability that the subjects chose to plead guilty given that they were sent to prison = P(G/A) = 0.40

and the probability that the subjects chose to plead guilty given that they were not sent to prison = P(G/A') = 0.55

(a) The probability of getting someone who was not sent to prison = 1 - Probability of getting someone who was sent to prison

P(A') = 1 - P(A)

= 1 - 0.45 = 0.55

(b) If a study subject is randomly selected and it is then found that the subject entered a guilty plea, the probability that this person was not sent to prison is given by = P(A'/G)

We will use Bayes' Theorem here to calculate the above probability;

P(A'/G) = $\frac{P(A') \times P(G/A')}{P(A') \times P(G/A') +P(A) \times P(G/A)}$

= $\frac{0.55 \times 0.55}{0.55\times 0.55 +0.45 \times 0.40}$

= $\frac{0.3025}{0.4825}$

= <u>0.63</u>

6 0

2 years ago